Figure 12. Axonal ribbon synapses (black circles) and veto synapses (white circles) are distributed along the axons of 105 reconstructed bipolar cells. Grey lines are OFF cone bipolar cells terminating high in the inner plexiform layer. Green lines are G+ ON cone bipolar cells. Magenta lines are rod bipolar cells with extensive AI and AII amacrine cell contacts. Each line indicates the length of the axon from its point of entry to its terminal expansion level in the inner plexiform layer (IPL). The physical cells are longer as we show only the axon, not the entire terminal arbor. The break in the lower panel axons represents the approximate position of the lower limit of identified OFF bipolar cell processes. Importantly, some bona fide ON bipolar cells axons are shorter than the longest OFF bipolar cell axons and terminals and they co-mingle.